[cis-{η²-(Ph₃PAu)₂}Ph₃PCr(CO)₄]·THF, featuring the shortest known separation between two Au metal centres in a heteronuclear Au₂M cluster

The title compound, tetra­carbonyl-1κ⁴C-tris­(tri­phenyl­phos­phino)-1κP,2κP,3κP-triangulo-chromiumdigold(Au—Au)(2 Cr—Au) tetra­hydro­furan solvate, [Au₂Cr(C₁₈H₁₅P)₃(CO)₄]·C₄H₈O, is a stable isolobal analogue of the extremely labile [(η²-H₂)CrL_n–1] molecular hydrogen complex (n = 6; L is a neutral ligand, e.g. CO or PPh₃), and features the shortest known separation [2.6937 (2) Å] between two Au atoms in a triangular heteronuclear metal-cluster framework.